Theodore h



T. H. FRETER.

WASHING AND SIERILIZING APPARATUS.-

APPLICATION FILED OCT. 4. 1920.

1388,2419.- Patented Aug. 23, 1921.

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A TTORNIiY.

UNITED STATES THEODGRE H. FRE'IER,

OF CHICAGO, ILLINIOS.

WASHING AND STERILIZING APPARATUS.

Specification of Letters Patent.

Patented Aug. 23, 1921.

Application filed October 4, 1920. Serial No. 414,633.

To all whom it may com-era:

Be it known that I, Tfinononn H. Fnn'rnn, a citizen of the United States of America, and a resident of Chicago, county of Cook, State of Illinois, have invented certain new and useful Improvements in \Vashing and sterilizing A paratus, of which the following is a speci cation.

This invention relates to dish-washing or sterilizing apparatus, and its object 1s to provide a machine of that nature wherein the cleaning and sterilizing efi'ect 1s produced by rotating nozzles adapted to project with considerable velocity fine streams of hot (water against thearticles operated upon.

It is among the objects of the inventlon to provide a machine of the class mentioned having upper and lower nozzles or spr nkling elements in which the upper sprlnkllng element is hingedly connected to its water 1nlet tube, and to provide an arrangement of supply tube for both of the nozzles whlch projects downwardly in the boiler below someflpredetermined water hne.

An illustrative embodiment of this mvention is shown in the accompanying drawin s, in which--- igure 1 re resents the device 1n side elevation with t e casing, boiler and certaln details shown in section.

Fig. 2 is a fragmentary horizontal sectlon of one of the sprinkler elements taken on the line 2-2 of Flg. 1.

With this end in view the machine comprises, generally, a cylindrical casing adapted to rest over an opening in a stove, or to contain a gas or other burner in its lower art for providing the necessary heat. S aced, upwardly from the bottom edge of the container-his a, boiler and supported above the boiler is a wire basket for containing articles-to be cleaned by the machine. Rotarynozzles arelocated below and above the basket and communicate by tubes with the interior oi the boiler below the normal water line. The upper nozzle is supported by a hinged joint which permits it to be swung outwardly so that the articles may be placed in orremoved from the basket w1thout difficulty, or the basket itself may be i removed-from the device.

Referring "to the drawing, an outer cylindrical casing ljis shown provided with a re movable lid 2 and carrying in its bottom a boiler 3. Below the boiler the caslng is providcd with supporting legs 4 and aperture 5 in order that a gas burner may be placed in position below the boiler if desired, although it is intended that with small sizes the alternative method of use of placing the same over an opening in a gas or coal stove be resorted to. The function of the boiler is to provide hot water under pressure to rotate sprinklers 6 and 7 located respectively above and below a wire container 8. This container has supporting legs 9 resting on the upper surface of the boiler.

Tubes 10 and 11 extending horizontally from the body of valve 12 conduct the hot water to the sprinklers. The sprinkler 6 is provided witha hinged joint 13 connecting its inlet tube 14 with the vertical portion 15 of the tube 11. The joint 13 permits the sprinkler (3 to be swung in a horizontal plane away from above the basket 8. The valve 12 at its inlet side communicates with a vertical tube 16 projecting downwardly into the boiler and being provided at its lower end with a screen or strainer 17. The valve 12 opens against the action of a spring 18 when the pressure in the boiler arrives at the point determined by the strength of the spring. Vater may be supplied to the boiler by pouring it in the upper part of the apparatus. and then opening the valve 19 after which the valve is again reseated. The upper cleaning compartment is drained by means of a comparatively large faucet 20 which is also serviceable for reducing the pressure in the cleaning compartment due to the hot water flowing therein.

Vhere hot water under sufiicient pressure is available independent of the boiler 3, connection to the sprinklers may be made through the laterally projecting pipe 21 which is normally closed by the cock 22 and the boiler with its valves be dispensed with.

In the operation of the device the boiler is first fed by opening valve 19 and pouring therethrough the desired quantity of water. This valve is then closed and the articles to be sterilized and cleaned are placed in the basket 8, this basket being provided with suitable shelves and spacer wires. The sprinkler 6 is then rocked back to its normal position above the basket and the lid 2 is replaced. When sufiicient pressure is at tained in the boiler to overcome the action of spring 18, the valve 12 opens, thus permitting the hot water to flow at the desired pressure to the sprinklers 6 and 7, these being caused to rotate in any customary manner, as by vanes 23 centrally located therein. In this manner numerous fine jets of hot water are thrown downwardly and upwardly by the rotating sprinklers, and consequently reach the articles in the basket from many different directions.

I claim: V

1. A washing apparatus comprising a receptacle having an upper cleaning compartment containing a nozzle, a boiler located in the lower part of said receptacle-and having an outlet communicating with said nozzle, said boiler being adapted to contain fluid under pressure for discharge through said outlet and nozzleinto said compartment, a valve controlling said outlet, and means for normally holding said valve in its closed position until the pressure of the water in said boiler reaches a predetermined amount.

2. A washing apparatus; comprising a re ceptacle having an upper cleaning compartment containing a rotatable nozzle, a boiler located in the lower part of said receptacle, a

pipe extending into said boiler and communicating with said nozzle, sald boiler being adapted to contaln ,fiuld under pressure for'diseharge through pipe and nozzle into said compartment, the inlet of said pipe being located below the normal level of the 3. A washing apparatus comprising a re ceptacle having an upper cleaning compartment containing a rotatable nozzle, a boiler located in the lower part of said receptacle and having an outlet communicating with said nozzle, said boilerbeing adapted to contain fluid under pressure for discharge through said outlet and nozzle into said com partment, a valve controlling said outlet, and means for normally holding said valvein its closed position until the pressure of the water in said boiler reaches a'predetermined amount, the top of said boiler forming the bottom of said cleaning compartment, I, V

Signed at Chicago this 30th day of Sept, 1920.

THEODORE FRETER. 

